If you are using Internet Explorer to browse the Internet, think twice. A new threat has made using Internet Explorer so dangerous that even the government is warning against its use. The vulnerability allows hackers to hijack computers.Microsoft is aware of limited, targeted attacks that attempt to exploit the vulnerability in Internet Explorer. Internet Explorer 6 through 11 are all at risk, on all current versions of Windows from Vista to 8 and Windows Server 2003 to 2012 R2. The bug is understood to be present in IE on Windows XP, although that operating system is no longer supported. That means there will be no fix for Windows XP. However, I want to make it clear that this affects all computers running Internet Explorer, not just Windows XP computers. I recommend you use a different web browser such as Firefox or Chrome. Firefox can be downloaded at http://www.getfirefox.com. Chrome can be downloaded at http://www.google.com/chrome. Microsoft is moving quickly to fix the bug. However, this is just another in a long line of security issues with Internet Explorer. Most IT professionals, such as myself, quit using it on a regular basis some time ago. I suggest you do as well.